1NSTITUT' 



POA. 401 



the st. and offsets swollen bulblike. L. with a narrow white 

 serrate edge. The st. soon wither and the bulbs lie loose until 

 the autumn. Sandy sea-shores of the south and east. P. IV. 

 V. E. 



3. P. minor (Gaud.) ; pan. oblong subovate, spikelets of 3 or 

 4 webbed fl., lower pale with 5 veins but only 3 hairy, upper 

 sheath longer than its leaf which is folded and slightly incurved 

 but tapering at the tip, uppermost knot covered, upper ligule 

 long acute, lower ones short rather blunt. P. flexuosa Sm., E. B, 

 1123.? not of others. Root fibrous. St. 68 in. high. Fl. 

 often viviparous. Lofty mountains. Loch-na-Gar. Ben Nevis. 

 P. VII. VIII. S. 



4. P. laxa (Haenke !) ; pan. lax slightly drooping, spikelets 

 oblong-ovate of 3 free fl., lower pale with 3 hairy veins, upper 

 sheath longer than its leaf which is flat and taper-pointed, 

 uppermost knot covered, ligules all long acute. P. 38. Root 

 fibrous. St. 6 12 in. high. Fl. often viviparous. Lofty moun- 

 tains. Ben Nevis. Loch-na-Gar. P. VII. VIII. S. 



5. P. alpina (L.) ; pan. erect spreading when in flower, spike- 

 lets ovate of 3 or 4 free fl., lower pale with 3 hairy veins, upper 

 sheath longer than its leaf which is folded and rounded behind 

 the tip, uppermost knot exposed, ligule long pointed. E. B. 

 1003. P. 37 and 94. Root fibrous, tufted. St. 612 in. high, 

 basal sheaths common to it and the tuft of leaves. Fl. often 

 viviparous. Lofty mountains. P. VI. VII. 



6. P. ccesia (Sm.) ; pan. erect slender, spikelets ovate of 2 5 

 acute free fl., lower pale with 5 veins but only 3 hairy, upper 

 sheath about as long as its leaf which is folded and slightly in- 

 curved but tapering at the tip, uppermost knot near to the base of 

 the stem, ligule obtuse. Root fibrous. St. 6 12 in. high. 

 Lowest fl. longer than the large glume. a. ccesia ; spikelets of 

 4 or 5 fl., pan. rather spreading. P. ceesia Sm., E. B. 1/19. 

 P. 40. j8, glauca ; spikelets of 2 or 3 fl., pan. rather close, 1. 

 broader. Mountains, a. Ben Lawers. Clova. /3. Ben Nevis. 

 Snowdon. P. VII. E. S. 



ft Lower pan. -branches in fives or 2 or 3 together. Dorsal 

 and marginal veins of the lower pale hairy. 



7. P. nemoralis (L.) ; pan. rather drooping slender, spikelets 

 ovate-lanceolate of 3 or 4 webbed fl., lower pale with 5 veins but 

 only 3 hairy, upper sheath not longer than its leaf, uppermost 

 knot at about the middle of the st. exposed, ligule extremely 

 short truncate. E. B. 1265. P. 36. Root slightly creeping. 

 St. slender, 1 2 feet high. Sheaths smooth.' ^3. angustifolia ; 

 st. and pan. very slender, 1. long and narrow, uppermost knot 



